Home / 20,968.10-28,924.95-12,464.18

Finding the Fourth Proportional to 20,968.10, 28,924.95 and 12,464.18

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Solution

The fourth proportional to 20,968.10, 28,924.95 and 12,464.18 is: 17,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.10 : 28,924.95 = 12,464.18 : x
  2. Step 2: Convert to fraction form
    20,968.10/28,924.95 = 12,464.18/x
  3. Step 3: Cross multiply
    20,968.10x = 28,924.95 × 12,464.18
  4. Step 4: Simplify right side
    20,968.10x = 360,525,695.00
  5. Step 5: Solve for x
    x = 360,525,695.00/20,968.10
  6. Step 6: Final answer
    x = 17,194.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.